baber/WOPTO huggingface dataset:
Patent GB-1225228-A (GB)
IPC: C01G49/00
Filed: 1969-09-04
Abstract: 1,225,228. Ferrites. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 4 Sept., 1969 [7 Sept., 1968], No. 43839/69. Heading C1A. [Also in Division H1] ] A polycrystalline magnetically anisotropic spinel ferrite body is made by mixing a crystallized ferrite having axial or planar crystal anisotropy and defined by the formula with an oxide A"O, shaping the mixture while magnetically orientating the individual crystals by magnetic and/or mechanical .means, And then sintering the shaped body. A<SP>II</SP>and B<SP>II</SP> are each one or more of Fe<SP>II</SP> Ni<SP>II</SP> Mn<SP>II</SP>, Co<SP>II</SP> Zn, Mg, Cu<SP>II</SP> and Li<SP>I</SP> + Fe<SP>III</SP>/2; and x is 6 or 8. At least part of the A<SP>II</SP>O may be replaced by one or more compounds convertible to A<SP>II</SP>O on heating, and part of the Fe<SP>III</SP> in the ferrite may be replaced by at least one of Al, Cr<SP>III</SP> and A<SP>II</SP> + M<SP>IV</SP>/2 where M<SP>IV</SP> is Ti<SP>IV</SP> and/or Sn<SP>IV</SP>. Magnetic orientation may be effected by application of a magnetic field or by incorporating a binder, rolling or extruding into strips or plates, and then burning of the binder before sintering. An example describes the preparation of nickel ferrites (NiFe 2 O 4 ) from PbFe 12 O 19  and NiO.
Patent GB-1225808-A (GB)
IPC: H04L23/02
Filed: 1968-07-08
Abstract: 1,225,808. Multiplex detector. ALLENBRADLEY CO. 8 July, 1968 [28 Sept., 1967], No. 32430/68. Heading H4R. A detector for sensing orthogonal sine and cosine functions of the form  sin 2#nft and  cos 2#nft where n is an integer, in a pulsed input signal comprises, Fig. 1, a pair of integrating circuits 11, and 22, each comprising an operational amplifier, 4 or 13, with an associated integration capacitor, 9 or 14. The integrating circuits are connected in a loop, with the output of each connected to the input of the other, the incoming signal is applied to the input of one integrator, and the integrator outputs, 8 and 20, provide signals indicating the presence of absence of the respective sine and cosine functions. The integrator time constants R1C1 and R2C2 are related to the frequency of the sine or cosine functions in the incoming signal to make the detector respond only to the required function, and not orthogonal functions, and the integrator capacitors are discharged at the end of each pulse period by making f.e.t's 10 and 15 conduct after the integrator output has been evaluated. In alternative forms of detector the input signal is applied to the second integrator (22) instead of the first (11), Fig. 3 (not shown) or the second integrator (24) may be modified by providing a second integrating capacitor from the output to the inverting input of the operational amplifier (26), Fig. 2 (not shown). In use a number of the circuits each tuned to a respective one of the frequencies nf, where n is an integer, would be provided in parallel on a common transmission line to detect the respective pulsed signal.
Patent GB-1226011-A (GB)
IPC: B01D36/00
Filed: 1968-06-20
Abstract: 1,226,011. Fuel filter cartridge. BENDIX CORP. 20 June, 1968 [26 June, 1967], No. 29432/68. Heading B1D. [Also in Division F2] A fuel-filtering cartridge comprising a stack of annular paper washers or helically wound ribbon in a perforate casing 26, has an outlet ferrule 32 at one end and a buoyant spherical valve member 42 normally retained between two perforate water-soluble diaphragms 46, of cellulose polymer, located at opposite ends of a sleeve 44 dividing the stack or ribbon. If the fuel being filtered contains water, the diaphragms dissolve and member 42 is carried into ferrule 32 where it prevents further flow through the cartridge. Fig. 1 (not shown) illustrates several cartridges in one housing.
Patent GB-1226736-A (GB)
IPC: E04D13/064
Filed: 1969-10-01
Abstract: 1,226,736. Guttering. DEUTSCHE STEINZEUG-UND KNUSTSTOFFWARENFABR1K. 1 Oct., 1969 [1 Oct., 1969], No. 48162/ 69. Heading E1B. Plastics guttering has a vertical front wall 8 to a horizontal bar 20 and a semi-circular rear wall 28. The maximum width of the flat base is equal to the internal diameter of a down pipe 24 having a collar 22. A rectangular end plate may be provided for the guttering. The radius of curvature of wall 28 equals the height of wall 8.
Patent GB-1227988-A (GB)
IPC: H04L7/033
Filed: 1968-06-06
Abstract: 1,227,988. Digital transmission systems. INTERNATIONAL COMPUTERS Ltd. 12 May, 1969 [6 June, 1968], No. 26979/68. Heading H4P.  To reduce the likelihood of synchronizing a clock pulse circuit on spurious noise pulses which accompany received digital data signals the circuit includes a counter which cycles at a rate nominally equal to the digit rate and which can be reset by a received signal only during a period defined by two states of the counter. As described the counter has a 16-state cycle S0-S15 and the said period lasts from the beginning of state S15 until the end of state S1. The received signal D 0  (binary data and noise) is sampled at gate 11 by pulses Y 1  derived from state S7 of the counter 13 and occurring at about the centre of each bit. Each negativegoing transistion in signal D 0  causes monostable T 1  to produce a pulse which resets counter 13 to state S0 if gate 14 is enabled. The period during which gate 14 is enabled is determined by bi-stable N 1  which is set to one state at the end of counter state S14 and is reset at the end of S1. Any transitions occurring outside this period thus can not reset the counter. Counter 13 is set to zero at the start of transmission by bi-stable M 1 , triggered when, for example, a start character has been received.
Patent GB-1228032-A (GB)
IPC: A61K31/65
Filed: 1968-06-19
Abstract: 1,228,032. Viomycin derivatives. INSTYTUT ANTYBIOTYKOW. 19 June, 1968 [24 June, 1967; 12 Jan., 1968], No. 29118/68. Headings C2A and C2C. The invention comprises (A) a salt of viomycin with a penicillin or a chloramphenicol derivative of formula wherein n is 0 to 8, Y is H, halogen, OH, alkyl, alkoxy or aryl; or (B) a viomycin 2-aminomethylated derivative of a tetracycline antibiotic having a carbamoyl group at the 2-position in the molecule. Viomycin salts (A) are prepared by reacting a viomycin salt with a bivalent metal salt of an antibiotic having a carboxylic group in the molecule, the anion of the viomycin salt being capable of forming a water-insoluble salt with the bivalent metal. Viomycin derivatives (B) are prepared by reacting a viomycin salt of an aliphatic monocarboxylic acid or of a pyridine carboxylic acid with a tetracycline antibiotic having a carbamoyl group in the 2-position in the molecule, in the presence of formaldehyde. The penicillin may be benzyl penicillin, alpha-aminobenzyl, phenoxymethyl, phenoxyethyl, phenoxypropyl, 5 - methyl - 3 - phenyl - 4 - isoxazolyl, 5- methyl - 3 - p - chlorophenyl - 4 - isoxazolyl or 2,6-dimethoxyphenyl penicillin. The chloramphenicol derivative may be a chloramphenicol aliphatic dicarboxylic acid monoester. The tetracycline antibiotic may be tetracycline, oxytetracycline, chlortetracycline, bromtetracycline, 6 - dioxy tetracycline or 6-demethyloxytetracycline. A pharmaceutical composition comprises (A) a viomycin salt of a penicillin or a chloramphenicol or (B) a viomycin 2-aminomethylated derivative of a tetracycline antibiotic. Chloramphenicol succinate mono ester barium salt is obtained by reacting the free acid with barium hydroxide.
Patent GB-1233461-A (GB)
IPC: F16B39/284
Filed: 1968-04-29
Abstract: 1,233,461. Lock nuts. K. ITOYA, and K. MORIYAMA. 29 April, 1968, No. 20165/68. Heading F2H. [Also in Division F4] A screw-threaded fastening comprises an externally screw-threaded member 1, an internally screw-threaded nut 2 adapted to engage the member 1, the minor diameter of the screwthread 5 of the nut 2 being less than the minor diameter of the screw-thread of the member 1 and the nut 2 being made of a resiliently deformable non-metallic material so that it is deformed by the member 1 when the nut and the member are screwed together. As shown, the member 1 comprises a bolt and the lock-nut is made of natural or synthetic rubber, &c. The major diameter of the thread on the nut may be less than or equal to that of the bolt. A lock-nut provided with a metal cover and a lock-nut having a flange are also described.
Patent GB-1233808-A (GB)
IPC: A61K/
Filed: 1969-03-18
Abstract: 1,233,808. Hair dyeing. L'OREAL. 18 March, 1969 [18 March, 1968], No. 14300/69. Heading D1B. [Also in Divisions A5 and C5] Hair dyestuff compositions having an improved stability to light contain benzylidene camphor and at least one photosensitive dyestuff such as an azo, nitrobenzene, anthraquinone or triphenylmethane dye.
Patent GB-1237931-A (GB)
IPC: G02C7/06
Filed: 1968-09-05
Abstract: 1,237,931. Coating with Fe. U. K. OPTICAL BAUSCH & LOMB Ltd. Sept. 5, 1968 [Sept. 5, 1967], No.42382/68. Heading C7F. [Also in Division G2] Metallic iron is deposited by vacuum deposition on to a surface of a component of a multifocal lens 10 by means of a heated electrode 23 with an iron wire 33 wound around it, said electrode being in a sealed evacuated bell jar 31.
Patent GB-1238168-A (GB)
IPC: D06M11/79
Filed: 1969-03-25
Abstract: 1,238,168. Treating fibrous materials with clay. GENERAL MILLS Inc. 25 March, 1969 [25 March, 1968], No. 15668/69. Headings D1B and D1P. [Also in Division A5] The retention of cationic organic compounds in ,fibrous materials is improved by impregnating the fibres in an aqueous medium with an acid or alkali metal montmorillonite clay. The medium preferably contains from 0.01 to 10.0% by weight of clay and may be an aqueous dispersion containing 0.001 to 5.0% by weight of the clay and 0.001 to 5.0% by weight of the cationic compound. The cationic organic compound may be e.g. a basic dye, a germicide, a fabric softner or a compound used in paper making. The fibrous material is preferably cellulose but may be any fibre which will form a bond with the clay. The process may be included in the dyeing of fabrics, the preparation of paper and the impregnation of germicides into fabrics.
Patent GB-1239110-A (GB)
IPC: F04C14/04
Filed: 1969-12-22
Abstract: 1,239,110. Gear pumps. ZAHNRADFABRIK FRIEDRICHSHAFEN A. G. Dec.22, 1969 [Dec. 21, 1968], No. 62248/69. Heading F1F. An externally meshing gear pump comprises a fixed casing 4 housing a movable casing 3 pivotable in either direction through 180 degrees about the axis of rotation of the drive-shaft 12, the movement being effected by frictional engagement of a pair of clutch pads 5, connected to the casing 3, with the drive-shaft, and controlled in dependence on the pump output pressure, so that the pump has a constant delivery direction for both directions of shaft rotation. The clutch pads 5 pivoted together by a pin 11 are urged into engagement with the drive-shaft 12 by a spring 7, and are held out of engagement with the shaft during normal pumping by a pair of coaxial pistons 6 mounted in a cylinder 22, the space between the pistons being connected via an axial channel 23, 24, a radial channel 25 and a passage 26 or 27 in the fixed casing 4, with the outlet side of the pump. When the direction of rotation of the shaft 12 is reversed, the output pressure drops until spring 7 overcomes the force of the pistons 6 urging the pads 5 into engagement with the shaft. The inner casing 3 then rotates with the shaft 12 through 180 degrees, the rotation being limited by a pin 8 mounted in the casing 4 engaging in a semi-circular slot 18 in the casing 3. The pads 5 remain in frictional engagement with the shaft 12 until the outlet pressure builds up and pistons 6 overcome the force of spring 7. Figs. 5, 6, 7 (not shown) show a similar arrangement applied to an internally meshing pump.
Patent GB-1250794-A (GB)
IPC: F21K5/14
Filed: 1968-12-19
Abstract: 1,250,794. Priming compositions. GTE SYLVANIA Inc. 19 Dec., 1968 [26 Dec., 1967], No. 60394/68. Heading C1D. A fulminating material for use in percussive type primers for flashlamps is prepared by mixing an alcoholic suspension of phosphorus and an aqueous suspension of potassium chlorate and zirconium, and mixing the two suspensions shortly before use. For example the alcoholic suspension may contain red phosphorus, magnesium oxide, and a 2% solution of hydroxypropyl cellulose in 2-methoxyethanol, and the aqueous suspension powdered zirconium, potassium chlorate, aluminium oxide abrasive, and a 0À8% solution of hydroxyethyl cellulose in water. Alternative alcohols are methanol, ethanol, and propanol; phosphorus sesquisulphide may be used in place of phosphorus.
Patent GB-1251793-A (GB)
IPC: H02K3/18
Filed: 1967-10-06
Abstract: 1,251,793. Coil formers. JOSEPH LUCAS (INDUSTRIES) Ltd. 2 Oct., 1968 [6 Oct., 1967; 14 June, 1968], Nos. 8010/71 and 8009/71. Heading B8M. [Also in Divisions H1 and H2] The subject-matter of this Specification is substantially the same as that disclosed in connection with Figs. 4, 5 and 6 in Specification 1,251,792 and the claims relate to the former shown in these figures.
Patent GB-1256659-A (GB)
IPC: F16D35/02
Filed: 1970-09-10
Abstract: 1,256,659. Hydraulic couplings. GENERAL MOTORS CORP. 10 Sept., 1970 [25 Sept., 1969], No. 43403/70. Heading F2C. A viscous fluid shear coupling in the drive for an I.C. engine cooling fan comprises a driving plate 46 in the working chamber 48 of a driver housing 23 having co-operating shear surfaces 50, 52, the housing being internally divided by a partition 40 to define the chamber 48 and a reservoir 56, and a compensating chamber in the form of a groove 70 being provided in the housing wall opposite the radially outer surface 50 on the plate 46 so that it must first be filled before fluid fills the shear spaces between surfaces 50, 52 and hence it minimises the effects of manufacturing tolerances resulting in variations in the depth of fluid in the reservoir 56. The partition 40 is provided with constantly open outlets 58, 60 through which fluid is pumped from chamber 48 by abutments 62 on the partition 40. Elongated inlets 66, 68 in the partition 40 are selectively controlled by a valve member 72 adjusted by a bimetallic strip 92 in accordance with the ambient temperature. The inlets co-operate with member 72 so that inlet 66 opens first to fill chamber 70 and then inlet 68 begins to open. Cooling fins 35 are provided on the housing.
Patent GB-1257983-A (GB)
IPC: G03C1/08
Filed: 1969-04-24
Abstract: 1,257,983. Photographic sensitization. AGFA-GEVAERT A.G. April 24, 1969 [April 27, 1968], No.20896/69. Heading G2C. Exposed silver halide emulsions are developed in the presence of a bis-aminomethyl-tetraalkyl disiloxane, as sensitizer. The disiloxane may be in the silver halide emulsion or developer and is preferably of formula; (in which R 1-4  are each H, C 1-12  alkyl or cycloalkyl, or R 1  and R 2  and/or R 3  and R 4  together complete a 5-7 membered ring; R 5  is C 1-6  alkyl). The emulsion may contain a tetraazaindene stabilizer.
Patent GB-1264541-A (GB)
IPC: G05F1/445
Filed: 1969-02-17
Abstract: 1,264,541. Automatic voltage control. BELL PUNCH CO. Ltd. Feb.17, 1970 [Feb. 17, 1969], No. 8575/69. Heading G3R. The voltage applied to the primary winding W1 of a transformer T1, having secondary windings W3, W4, W5 supplying loads through rectifier and smoothing circuits (not shown), is stabilized over a range of variation of the A. C. mains supply to the transformer by interposing between the supply and winding W1 a rectifier bridge D1--D4 whose common path includes a parallel connection of transistor TR1 and resistor R1, the transistor TR1 being controlled in response to variation of the A. C. supply so that its resistance varies to absorb the supply voltage variation. The supply voltage is detected by a centre-tapped winding W2 of the transformer T1 feeding, via a rectifier bridge D6--D9, a bias circuit for the transistor TR1 comprising transistor TR2, Zener diode D10 and resistors R3, R4 and RV1. As the supply voltage increases from a first to a second value, the resistance of transistor TR1 rises from a low to a high value in response to an inverse change of resistance of the transistor TR2. The nominal value of the supply voltage lies between the first and second values and is preferably nearer to the first value so that the resistance change of transistor TR1 is used to produce a voltage limiting effect. Diode D5 increases the resistance of the path containing the transistor TR1. A capacitor C1 reduces gain at high frequencies and ensures that regulation occurs with a non-oscillatory hysteresis effect and that the characteristic of A. C. supply voltage against resistance of transistor TR1 is approximately linear.
Patent GB-1266765-A (GB)
IPC: D06C15/08
Filed: 1969-05-28
Abstract: 1,266,765. Rollers. ARTOS DR. ING. MEIER-WINDHORST K.G. 28 May, 1969 [29 May, 1968], No. 26851/69. Heading F2U. A roller (e.g. a calender roll for impressing a pattern on cloth) comprises a central section 12 fixed on a shaft 11 of which the length is extensible by pairs of hemi-cylindrical extension pieces 13, 14, anchored to the shaft by clamping between conical faced rings 15, 15A, 15B. The rings 15, 15A, 15B may be fixed to the shaft and on the pieces 13, 14 there may be fixed mating parts 16 and mating parts 17 axially adjustable by screws 18. The ring 15B may also have an axially adjustable part 19.
Patent GB-1267229-A (GB)
IPC: B65D88/34
Filed: 1970-08-14
Abstract: 1,267,229. Tanks with floating roofs. W. E. BELANGER and D. T. LEVITRE. 14 Aug., 1970 [14 Aug., 1969], No. 39337/70. Heading E1T. A floating roof for a tank 12 comprises a rigid peripheral member 17 of aluminium, a central support 34 disposed about a column 14 and tension members 40 interconnecting the members 17, 34, the latter supporting a mesh 46 covered by a plastics sheet 45. Members 40, 45, 46 are encased in plastics layers 54, 55 such as polyurethane foam or isophthalic polyesters and epoxies which are sprayed and polymerized in place. The upper and lower layers of the roof are coated with aluminium paint 57 and an epoxy resin paint 58 respectively. The roof is provided with a sealing strip 59 of urethane bolted thereto and a central seal 64 of like material. The roof is also provided with anti-rotation cables, a manhole and releasable legs for details of which and seals the Specification and remaining drawings (not shown), should be referred to.
Patent GB-1290123-A (GB)
IPC: H05B3/00
Filed: 1971-04-19
Abstract: 1290123 Carbon SIGRI ELEKTROGRAPHIT GmbH 19 April 1971 [11 March 1970] 23837/71 Heading C1A [Also in Division H5] A cooling vessel has a pair of electrodes of carbon or graphite having an accessible pore volume of less than 3% and a permeability coefficient of less than 10<SP>-3</SP> cm.<SP>2</SP>/sec., both of which terms are defined in the Specification. The electrode may be prepared by curing and carbonizing, or carbonizing and graphiting a green body comprising a mixture of pulverous carbon, a binder comprising furfuryl alcohol and a polysaccharide plasticizer, and a hardener comprising an acid halide or a hydrolysable metal halide. The plasticizer may be an etheri. fied cellulose or an alginate. Alternatively the electrode may be prepared by impregnating a carbon body with a synthetic resin or pitch and carbonizing the impregnated body. A further method comprises depositing carbon from the gaseous phase.
Patent GB-1295224-A (GB)
IPC: F28F9/02
Filed: 1971-03-20
Abstract: 1295224 Soldering UNITED STIRLING (SWEDEN) AB & CO KB 20 March 1971 7532/71 Heading B3R [Also in Division F4] In a heat exchanger having two end covers with pipes extending between and through the covers, the end covers each comprise a plurality of similar metal sheets with aligned punched holes receiving the pipe ends, the sheets and pipe ends being all connected together by solder or brazing metal. In making a cooler for cooling helium in a Stirling cycle engine having at each end a cylindrical flange 1 receiving two metal discs 2, 3 with punched holes 4, a sheet of solder 6 is provided between the discs and with the pipes 5 in the punched holes, the whole assembly is heated in one operation or in two operations, one for each end, to solder the discs together and to the pipes and preferably the discs to the flanges 1. Brazing may be employed.
Patent GB-1297352-A (GB)
IPC: F02F7/00
Filed: 1971-05-05
Abstract: 1297352 I C engine sound insulation TEROSON-WERKE GmbH 5 May 1971 [9 May 1970] 13197/71 Heading F1B Sound damping hood for a cylinder head cover is made of a heavy bitumen or plastics foil having a specific gravity of 2À0 to 3À0 gm/cu.cw. Mounted on the cylinder head 3 is a conventional metal cover 2 which is enclosed by the hood 1. The hood may be directly attached to the cover by an adhesive, or there may be an intermediate layer of damping material 4, of a foam material or an organic or inorganic fleece. The intermediate layer may be continuous or formed as a grid, and provides greater damping of the higher frequency sounds e.g. above 1000 cycles/ sec. The greater proportion of the sounds generated by the valve gear are in the higher range. The hood may be coated or reinforced with asbestos fibres and may be made by compression moulding or deep-drawing.
Patent GB-1297415-A (GB)
IPC: B21C47/30
Filed: 1970-07-22
Abstract: 1297415 Winding and reeling PRODUCTION EXPERTS Inc 22 July 1970 [9 March 1970] 17278/72 Divided out of 1297414 Heading B3E The subject-matter of this Specification is identical with that described in Specification No. 1,297,414, but the claims are concerned with an expandible mandrel per se.
Patent GB-1297708-A (GB)
IPC: B23K20/08
Filed: 1970-07-17
Abstract: 1297708 Welding by pressure INTERNATIONAL RESEARCH & DEVELOPMENT CO Ltd 16 July 1971 [17 July 1970] 34797/70 Heading B3R In explosively welding a tubular body 1, 2 to a second body 3, a shock wave transmitting medium forming part of an inflatable device 5 inflated to conform to one surface of the tubular body is arranged between a charge of explosive 6 and the one surface of the tubular body and the charge is thereafter detonated. Two pipes 1, 2 are arranged within a coupling sleeve 3 surrounded by a removable clamp 4 and located within the pipes is a rubber inflatable device 5 having an explosive charge 6 in parallel passages in its walls. The device 5 has a metal end cover 7 which supports a detonator 8 in contact with an initiating charge 9. The device 5 if self sealing is inflated by a hypodermic syringe-like inflator pushed through a wall or if not self sealing is inflated through a bicycle tyre like valve. A metal strap 10 shields the surface to be welded from the explosion gases and hardboard, cardboard or metal stiffeners 11 may be provided to limit axial extension of the device. A tube may be similarly welded to a tube plate.